1H-NMR studies of the ozonation of methyl oleate

Maritza F. Diaz Gomez, Idania Alvarez Vera, Herman Velez Castro, Frank Hernandez Rosales, Oscar Ledea Lozano, Jesus Molerio Mirabal

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

13 Citas (Scopus)

Resumen

Unsaturated fatty acids are one of the main constituents of cellular membrane phospholipids and the aspect of ozonation of unsaturated fatty acids has been widely studied by different authors. We here study the ozonolysis of methyl oleate with addition of water or ethanol as a model to explore the efficiency of the 1H-NMR technique for the detection of Criegee ozonides in order to use it to follow up ozone therapy. It was found that ozonation of methyl oleate in the presence of water or ethanol produces ozonation products observed by 1H-NMR depending on ozone doses. The intensity of the 1H-NMR signals of Criegee ozonides increases with incremented ozone doses, however they appeared at lower ozone doses in water than in ethanol. Signals from aldehydes were also detected but at lower doses in ethanol than in water. These results suggest that the 1H-NMR technique is an efficient alternative method to evaluate Criegee ozonides produced upon ozonization of unsaturated fatty acids. The reaction mechanism for the ozone reaction with unsaturated fatty acids in the presence of water or ethanol is analyzed.

Idioma originalInglés
Páginas (desde-hasta)349-353
Número de páginas5
PublicaciónBoletin de la Sociedad Chilena de Quimica
Volumen42
N.º3
EstadoPublicada - 1997
Publicado de forma externa

Áreas temáticas de ASJC Scopus

  • Química (todo)

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